Moto droid 3/4 still decent for facebook/music?

Mar 15, 2003
my wife's kinda jealous of the burner phone I bought for gym use (cheap prepaid phone, don't have to worry about the hoodlums eyeing my iPhone, which doesn't fit in the treadmill's cupholder) and wants in. This is for iPod touch type wifi only use - spotify/candy crush/maybe facebook. She loves the old sidekicks and think droid's her closest, sub-$100 used bet right?

Anything about the phones preventing it from running recent apps? Fragmentation confuses me, can gingerbread download a majority of the apps on the app store? I don't really care about security vulnerabilities, she's mostly using it as a pmp.